A mother “felt ecstatic” and was relieved to hear from her son on Friday after he was missing for three days.

Jason Geier, 17, of Dix Hills was reported missing April 12. He was last seen near 43 Arista Drive in Dix Hills. The report led Suffolk police to issue a silver alert since Geier has been diagnosed with ADHD, bipolar disorder and depression, and was potentially suicidal after going without medication for at least 24 hours.

However, “somebody with a higher power kept him safe,” Gail Mitgang, the teenager’s mother, said Monday. “I just heard his voice and that was enough for me to know he was okay.”

On Friday, Geier stopped in to 620 On Caton Pizzeria in Brooklyn and asked to use a telephone, Mitgang said. Geier called his mother and asked her to pick him up around 5 p.m., she said. He was unharmed, according to police.

“He’d never been to that area, he didn’t know where he was headed,” Mitgang said.

She thanked the staff at the pizzeria for allowing Geier to use their phone, especially given his “disheveled” appearance.

In an April 14 interview, Mitgang said her son also went missing two years ago, leading to a report filed with police. However, he was found a few hours later.